Home / 7,748.64-11,622.96-5,450.40

Finding the Fourth Proportional to 7,748.64, 11,622.96 and 5,450.40

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Solution

The fourth proportional to 7,748.64, 11,622.96 and 5,450.40 is: 8,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.64 : 11,622.96 = 5,450.40 : x
  2. Step 2: Convert to fraction form
    7,748.64/11,622.96 = 5,450.40/x
  3. Step 3: Cross multiply
    7,748.64x = 11,622.96 × 5,450.40
  4. Step 4: Simplify right side
    7,748.64x = 63,349,781.18
  5. Step 5: Solve for x
    x = 63,349,781.18/7,748.64
  6. Step 6: Final answer
    x = 8,175.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.